Run results for: replaceAll vs regex replace

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; Build/OPR6.170623.013) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.85 Mobile Safari/537.36

Browser: Chrome Mobile 64

Operating system: Android 8.0.0

Device Platform: Other

Date tested: 2025 years ago

Test name	Executions per second
replace regex	1435369.5 Ops/sec
replace All	539189.2 Ops/sec

Script Preparation code:

String.prototype.replaceAll = function(search, replacement) {
    var target = this;
    return target.replace(new RegExp(search, 'g'), replacement);
};

Tests:

replace regex
"this is it".replace(/ /g, "+");
replace All
"this is it".replaceAll(" ", "+");

Run results for: replaceAll vs regex replace

replace regex

replace All